---
product_id: 524533854
title: "BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair"
brand: "ct sounds"
price: "€ 106.92"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ct Sounds"
url: https://www.desertcart.hr/products/524533854-bio-4-cox-4-inch-coaxial-car-speakers-160-watts
store_origin: HR
region: Croatia
---

# 2-Way Full-Range Sound 160W Max Power Easy Plug & Play Install BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair

**Brand:** ct sounds
**Price:** € 106.92
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate your drive with sound that commands attention!

## Quick Answers

- **What is this?** BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair by ct sounds
- **How much does it cost?** € 106.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/524533854-bio-4-cox-4-inch-coaxial-car-speakers-160-watts)

## Best For

- ct sounds enthusiasts

## Why This Product

- Trusted ct sounds brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Compatibility:** Works effortlessly with factory or aftermarket head units and multichannel amplifiers—upgrade without the hassle.
- • **Sleek, Signature Style:** Includes CT Sounds signature grilles that add a modern, professional look to your car’s interior—because your ride deserves to sound as good as it looks.
- • **Plug & Play Installation:** Comes with pre-crimped connectors, mounting hardware, and detailed wiring diagrams for a stress-free setup.
- • **Power That Packs a Punch:** 160 Watts max output delivers crisp, clear sound that outperforms factory speakers without draining your battery.
- • **Balanced Audio Brilliance:** Silk-dome tweeter paired with polypropylene woofer ensures rich highs and tight bass for a premium in-car listening experience.

## Overview

The BIO-4-COX 4 Inch Coaxial Car Speakers by CT Sounds deliver up to 160 Watts max power in a compact 4-inch form factor. Featuring a silk-dome tweeter and polypropylene woofer, these 2-way full-range speakers provide balanced, rich sound with tight bass and clear mids. Designed for easy installation with included hardware and wiring guides, they seamlessly upgrade factory or aftermarket car audio systems, making them a top choice for audiophiles seeking premium sound without complexity.

## Description

Buy CT Sounds BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair: Coaxial Speakers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Does more with less power - Don’t expect to have any crazy base from a small 4 inch speaker but it’s does what it’s supposed to do. A lot better than stock audio. Doesn’t cut out at higher volumes like the stock speakers do and has a great range of sound. They do more with the same amount of power stock speakers do and the cover looks great in my bmw e92. BMW tries to stop you from really changing these things by changing up the wiring and all that and being weird with figment but once I got it into the right spot it was pretty easy to install and fit perfectly. I still have to upgrade the rear speakers but the front end is perfect now.
Review: Great - Work great and loud

## Features

- Speaker size: 4” car speaker, Speaker type: Coaxial, Impedance per speaker: 4 Ohm, Power per speaker: 40 Watts RMS | 80 Watts Max, Total system power: 80 Watts RMS | 160 Watts Max
- Upgrade your factory car speakers; run these 4" car speakers off your factory head unit, aftermarket head unit, or a multichannel amplifier
- Bio 2-way full-range 4" speakers car audio come closer to earth delivering a nicely balanced tonal range at a price that won’t send you into space
- Silk-dome tweeter is combined with the polypropylene woofer in a single form factor delivering sound that is rich and full with tight bass and mids
- Includes (2) 4” signature CT Sounds speaker grilles, (2) premium speaker wires with pre-crimped female spade connectors, (8) 1" mounting screws, (8) mounting clips, and (1) product manual with wiring diagrams for easy installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXBWM6RR |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #9,251 in Electronics ( See Top 100 in Electronics ) #44 in Car Coaxial Speakers |
| Color | black |
| Compatible Devices | MP3 Player, Smartphone, Tablet, Laptop, Desktop |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 4.5 out of 5 stars (128) |
| Date First Available | March 3, 2023 |
| Impedance | 4 Ohms |
| Included Components | (1) Product Manual with Wiring Diagrams For Easy Installation, (2) 4" Signature CT Sounds Speaker Grilles, (2) Bio 4" 160 Watt 2-Way Coaxial Car Speakers, (2) Premium Speaker Wires with Pre-Crimped Female Spade Connectors, (8) 1" Mounting Screws & (8) Mounting Clips |
| Is Waterproof | FALSE |
| Item Weight | 2.7 pounds |
| Item model number | BIO-4-COX |
| Manufacturer | CT Sounds |
| Model Name | BIO-4-COX |
| Number Of Circuits | 1 |
| Number of Items | 2 |
| Power Source | Corded Electric |
| Product Dimensions | 3.96"D x 3.96"W x 1.87"H |
| Recommended Uses For Product | car |
| Set Name | Pair |
| Shape | Rectangular |
| Speaker Size | 4 Inches |
| Speaker Type | Coaxial |
| Special Feature | Silk-dome tweeter |
| Specific Uses For Product | car audio systems, mobile device audio playback |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4 Inches |
| Surround Sound Channel Configuration | 2.0 |
| UPC | 850044969074 |
| Warranty Type | Limited |
| Woofer Diameter | 4 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** CT Sounds
- **Connectivity Technology:** Coaxial
- **Mounting Type:** Flush Mount
- **Speaker Maximum Output Power:** 160 Watts

## Images

![BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair - Image 1](https://m.media-amazon.com/images/I/71hRcypeWqL.jpg)

## Questions & Answers

**Q: Do they fit honda Goldwing?**
A: If you're handy with tools, sure.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does more with less power
*by L***O on November 5, 2025*

Don’t expect to have any crazy base from a small 4 inch speaker but it’s does what it’s supposed to do. A lot better than stock audio. Doesn’t cut out at higher volumes like the stock speakers do and has a great range of sound. They do more with the same amount of power stock speakers do and the cover looks great in my bmw e92. BMW tries to stop you from really changing these things by changing up the wiring and all that and being weird with figment but once I got it into the right spot it was pretty easy to install and fit perfectly. I still have to upgrade the rear speakers but the front end is perfect now.

### ⭐⭐⭐⭐⭐ Great
*by D***Z on January 21, 2026*

Work great and loud

### ⭐⭐⭐⭐ I'm very impressed
*by D***H on June 2, 2024*

These are very good sounding speakers. I've been using them for a few months now and they are impressive. Huge sound for the price. I'm interested in finding out how good the larger speakers will sound. I bought these with my own money and I'm not paid for my review.

## Frequently Bought Together

- CT Sounds BIO-4-COX 4 Inch Coaxial Car Speakers, 160 Watts Max, Pair
- CT Sounds BIO-6-5-COX 6.5 Inch Coaxial Car Speakers, 200 Watts Max, Pair
- CT Sounds BIO-5-25-COX 5.25 Inch Coaxial Car Speakers, 160 Watts Max, Pair

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**Shop now:** [https://www.desertcart.hr/products/524533854-bio-4-cox-4-inch-coaxial-car-speakers-160-watts](https://www.desertcart.hr/products/524533854-bio-4-cox-4-inch-coaxial-car-speakers-160-watts)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-22*